A detailed account of the group and its possible mode of life is given by Gale & Smith (1982). This taxon differs from Hagenowia in having a less pronounced and much less acute apical rostrum and a continuous rather than disjunct plastron. It is distinguished from Cardiaster by having a much more anterior apical disc and uniserial plating on the plastron; in Cardiaster the plates of the plastron may become uniserial, but with successive plates triangular and offset to left and right, whereas in Infulaster the first three plates are linearly arranged.
Smith, A. B. & Wright, C. W. 2003. British Cretaceous echinoids. Part 7, Atelostomata, 1. Holasteroida. Palaeontographical Society Monographs, London. Pp. 440-568, pls 139-182.
Gale, A. S. & Smith, A. B. 1982. The palaeobiology of the Cretaceous irregular echinoids Infulaster and Hagenowia. Palaeontology 25, 11-42.
Kroh, A. & Wagreich, M. 2007. Infulaster (Echinodermata: Echinoidea) from the Turonian of the Northern Calcareous Alps. Austrian Journal of Earth Sciences 100, 154-161.